Microsoft recently reported that the company has "uncovered stealthy and targeted malicious activity focused on post-compromise credential access and network system discovery aimed at critical infrastructure organizations in the United States." Volt Typhoon is a state-sponsored actor based in the People's Republic of China who is "pursuing development of capabilities that could disrupt critical communications infrastructure between the United States and Asia region during future crises." As a result, the FBI, NSA, CISA, and cybersecurity agencies from Australia, New Zealand, the United Kingdom, and Canada have released a joint Cybersecurity Advisory (CSA).